I have two rooms to set up this year, one of them Kindergarten and one Preschool. The Kindergarten room is looking great. The preschool room on the other hand has a way to go. Here is my question- How much do you put out for them in each center. How many dolls? How many blocks? How many games? and so on. How much do you put on the shelf. I don't want to overwhelm them. I know I don't want to put too much out, especially at first. How many centers or areas do you have in your room?